Machine Design The objective of idler pulley in belt drive is to Increase the wrap angle and belt tension All the above objectives Increase the power transmission capacity Decrease the tendency of belt to slip Increase the wrap angle and belt tension All the above objectives Increase the power transmission capacity Decrease the tendency of belt to slip ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the belt speed increases Power transmitted increases Power transmitted remains the same Power transmitted increases to a maximum value and then decreases Power transmitted decreases Power transmitted increases Power transmitted remains the same Power transmitted increases to a maximum value and then decreases Power transmitted decreases ANSWER DOWNLOAD EXAMIANS APP
Machine Design The resultant axial load on a bolt depends upon Initial tension due to tightening of the bolt External load applied All of these Relative elastic yielding of the bolt and the connected members Initial tension due to tightening of the bolt External load applied All of these Relative elastic yielding of the bolt and the connected members ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a hole of diameter ‘d’ is punched in a metal of thickness 't', then the force required to punch a hole is equal to (where τu = Ultimate shear strength of the material of the plate) π/4 × d².τu πd.t.τu π/4 × d² × tτu t.τu π/4 × d².τu πd.t.τu π/4 × d² × tτu t.τu ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to Unwin's formula, the relation between the diameter of rivet hole (d) and the thickness of plate (t) is given by (where d and t are in mm) d = 2√t d = 6√t d = 1.6√t d = √t d = 2√t d = 6√t d = 1.6√t d = √t ANSWER DOWNLOAD EXAMIANS APP
Machine Design Basic hole is one Whose upper deviation is zero Whose lower deviation is zero Whose lower as well as upper deviations are zero Does not exist Whose upper deviation is zero Whose lower deviation is zero Whose lower as well as upper deviations are zero Does not exist ANSWER DOWNLOAD EXAMIANS APP
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